For great sawab and protection from major sins

Ibne Babviya (a.r.) has through reliable sources reported that Ameer al Momeneen Hazrat Ali (a.s.) said that

he who recites this Dua thrice by evening or any time upto the end of evening he will not miss any good action that night and all evils and mischiefs will remain away from him. And he who recites this Dua, in the morning will also the same reward.

فَسُبْحَانَ اللهِ حِيْنَ تُمْسُوْنَ وَ حِيْنَ تُصْبِحُوْنَ. وَ لَهُ الْحَمْدُ فِى السَّمَاوَاتِ وَ الْاَرْضِ وَ عَشِيًّا وَّ حِيْنَ تُظْهِرُوْنَ.

Transliteration:

"fa-subhaanal laahe heena tumsoona wa heena tusbehoona. wa alhul hamdo fis-samaawaate wal arze wa a’shiyyawn wa heena tuzheroon."

Translation:

"So Glory be to Allah when you enter evening and when you enter the morning, and for Him (alone) is all the praise in the heavens and the earth. At the sun’s decline and when you enter the noon"